Climate change: the hot hand of history.
D000383:Agriculture / Q000266:history*; D000864:Antarctic Regions; D001272:Atmosphere / Q000737:chemistry; D002244:Carbon / Q000032:analysis; D002245:Carbon Dioxide / Q000032:analysis; D003081:Cold Climate; D018534:Earth, Planet; D017752:Greenhouse Effect; D049669:History, 16th Century; D049671:History, 18th Century; D049672:History, 19th Century; D049690:History, Ancient; D049691:History, Medieval; D007053:Ice; D008697:Methane / Q000378:metabolism; D008962:Models, Theoretical; D009792:Oceans and Seas; D011058:Pollen; D012623:Seawater / Q000737:chemistry; D013696:Temperature; D013997:Time Factors; D014197:Trees / Q000502:physiology
D007053:Ice; D002245:Carbon Dioxide; D002244:Carbon; D008697:Methane